package net.bwie.realtime.jtp.dws.log.function;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import net.bwie.realtime.jtp.common.utils.DateTimeUtil;
import net.bwie.realtime.jtp.dws.log.bean.PageViewBean;
import org.apache.flink.api.common.functions.RichMapFunction;
import org.apache.flink.api.common.state.ValueState;
import org.apache.flink.api.common.state.ValueStateDescriptor;
import org.apache.flink.configuration.Configuration;

import java.util.HashMap;

/**
 * @Author: FuHe
 * @Date: 2025/5/19
 */
public class PageViewBeanMapFunction extends RichMapFunction<String, PageViewBean> {
    // 声明状态变量
    private transient ValueState<String> lastVisitDateState = null;
    //声明集合
    private HashMap<String, String> areaDic = null;

    @Override
    public void open(Configuration parameters) throws Exception {
        // 初始化状态变量
        lastVisitDateState = getRuntimeContext().getState(new ValueStateDescriptor<String>("last-visit-date", String.class)
        );
        // 初始化集合
        areaDic = getAreaDic();
    }

    //  获取地区字典字段
    private HashMap<String, String> getAreaDic() {
        // 定义map集合
        HashMap<String, String> map = new HashMap<>();
        // 向map集合中添加数据
        map.put("110000", "北京");
        map.put("120000", "天津");
        map.put("140000", "山西");
        map.put("150000", "内蒙古");
        map.put("130000", "河北");
        map.put("310000", "上海");
        map.put("320000", "江苏");
        map.put("330000", "浙江");
        map.put("340000", "安徽");
        map.put("350000", "福建");
        map.put("360000", "江西");
        map.put("370000", "山东");
        map.put("710000", "台湾");
        map.put("230000", "黑龙江");
        map.put("220000", "吉林");
        map.put("210000", "辽宁");
        map.put("610000", "陕西");
        map.put("620000", "甘肃");
        map.put("630000", "青海");
        map.put("640000", "宁夏");
        map.put("650000", "新疆");
        map.put("410000", "河南");
        map.put("420000", "湖北");
        map.put("430000", "湖南");
        map.put("440000", "广东");
        map.put("450000", "广西");
        map.put("460000", "海南");
        map.put("810000", "香港");
        map.put("820000", "澳门");
        map.put("510000", "四川");
        map.put("520000", "贵州");
        map.put("530000", "云南");
        map.put("500000", "重庆");
        map.put("540000", "西藏");
        // 返回集合
        return map;
    }

    @Override
    public void close() throws Exception {
        super.close();
    }

    @Override
    public PageViewBean map(String value) throws Exception {
        // 解析json
        JSONObject jsonObject = JSON.parseObject(value);
        JSONObject object = jsonObject.getJSONObject("common");
        JSONObject pageObject = jsonObject.getJSONObject("page");
        // 依据地区编码获取省份名称
        String arValue = object.getString("ar");
        String province = areaDic.get(arValue);
        // UV访客数
        Long uvCount = 0L;
        // 获取上一次访问日期
        String lastVisitDate = lastVisitDateState.value();
        // 获取当前数据日期
        String visitDate = DateTimeUtil.convertLongToString(jsonObject.getLong("ts"), DateTimeUtil.DATE_FORMAT);
        // 值为null时，表示今日第一次访问，UV字段为1
        // 值不为null时，上一次访问日期！=当前数据日期，也表示今日第一次访问，uv字段为1
        if (lastVisitDate == null || !lastVisitDate.equals(visitDate)) {
            uvCount = 1L;
            lastVisitDateState.update(visitDate);
        }
        // 返回实例对象
        return new PageViewBean(
                null,
                null,
                object.getString("ba"),
                object.getString("ch"),
                province,
                object.getString("is_new"),
                pageObject.get("last_page_id") == null ? 1L : 0L,
                1L,
                pageObject.getLong("during_time"),
                uvCount,
                jsonObject.getLong("ts")
        );
    }
}